How to Drive Piezoelectric Actuators. These ICs are directly integrated into the circuit. Since TI is interested in selling chips and not full piezo driver. Noliac - Your Piezo Partner. Drivers or motors based on our knowledge and experiences in the field. Piezoelectric actuators are used for high frequency. Driving Piezoelectric Actuators Extraordinarily fast devices that can produce. Bridge-Connected Driver Fig. Kmsnano V22 Activate Windows And Ms Office. 3 shows a circuit for a piezo.

US8A1 - Piezoelectric actuator driver circuit - Google Patents Connect public, paid and private patent data with Piezoelectric actuator driver circuit Info Publication number US8A1 Authority US Grant status Application Patent type Prior art keywords circuit piezoelectric frequency actuator amplifier Prior art date 2009-09-18 Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Granted Application number US12883356 Other versions Inventor Gaku Kamitani Toshinari Tabata Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.) Murata Manufacturing Co Ltd Original Assignee Murata Manufacturing Co Ltd Priority date (The priority date is an assumption and is not a legal conclusion. In a piezoelectric actuator driver circuit, a resistor provided to detect current is inserted in a current path for a piezoelectric actuator. A signal of a decreased voltage of the resistor is subjected to positive feedback to an amplifier circuit via a band-pass filter. An output signal of the amplifier circuit is subjected to negative feedback to the amplifier circuit via a band-elimination filter. The band-pass filter allows a signal of a fundamental resonant frequency of a piezoelectric device, which includes the piezoelectric actuator, to pass therethrough, and the band-elimination filter blocks the signal of the fundamental resonant frequency.